class Addnum
  {
    public static void main(String[] args)
      {
	int a=10;
	int b=20;
	int c=a+b;
	System.out.println("Addition of two numbers=" + c + " ");
	int d=a+b+c;
	System.out.println("a=" + a + "  b=" + b + "  c=" + c );
	System.out.println("Addition of Three Numbers =" + d + " " );

      }
  }